一種均質球體,由一系列球體構成,構成軸承中的滾動元件,即球(經過改良)。此部件主要用於減輕摩擦。它也可能用於其他用途,例如球式止回閥中的止回部件。不含:止回球;附孔球閥。
afbma std tolerance for balls, grade 10 standard tolerance designation, ams 6491 assn std single material response overall material document and classification, steel comp m50 overall material, 0.8764 inches nominal rolling element diameter, ball style designator